Home / 51,114.60-76,700.70-19,945.80

Finding the Fourth Proportional to 51,114.60, 76,700.70 and 19,945.80

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Solution

The fourth proportional to 51,114.60, 76,700.70 and 19,945.80 is: 29,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,114.60 : 76,700.70 = 19,945.80 : x
  2. Step 2: Convert to fraction form
    51,114.60/76,700.70 = 19,945.80/x
  3. Step 3: Cross multiply
    51,114.60x = 76,700.70 × 19,945.80
  4. Step 4: Simplify right side
    51,114.60x = 1,529,856,822.06
  5. Step 5: Solve for x
    x = 1,529,856,822.06/51,114.60
  6. Step 6: Final answer
    x = 29,929.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.